Bag pump



FIG. 1 is an upper front perspective view of the bag pump;

FIG. 2 is an upper rear perspective view of the bag pump;

FIG. 3 is a lower front perspective view of the bag pump;

FIG. 4 is a front view of the bag pump;

FIG. 5 is a rear view of the bag pump;

FIG. 6 is a left side view of the bag pump;

FIG. 7 is a right side view of the bag pump;

FIG. 8 is a top view of the bag pump; and,

FIG. 9 is a bottom view of the bag pump.

The broken lines shown in the drawings illustrate portions of the bag pump that form no part of the claimed design. 

CLAIM The ornamental design for a bag pump, as shown and described. 